Go install requires a version to be provided after the package name. gomobile init command is updated to reflect this new requirement Fixes golang/go#50994 Change-Id: I014bd6815d9620415ceb43dd7e0aea3afac60556 GitHub-Last-Rev: 3a07fa669175c34b5948de4abe74ab9092c83934 GitHub-Pull-Request: golang/mobile#75 Reviewed-on: https://go-review.googlesource.com/c/mobile/+/384414 Trust: Cherry Mui <cherryyz@google.com> Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com> Trust: Hyang-Ah Hana Kim <hyangah@gmail.com> Run-TryBot: Hyang-Ah Hana Kim <hyangah@gmail.com> TryBot-Result: Gopher Robot <gobot@golang.org>